December in Coronation is the most freezing month of the year. In December, the weather in Coronation is typically freezing. Average daily high temperature in December is about 8 degrees below zero. On average, Coronation has 19 cloudy, 5 sunny, 5 partly cloudy, and 2 snowy days in December. The snowfalls are usually light. December as well as March, April, May, and June is considered the most uncomfortable time to visit Coronation.